Dust trap or collector.



s. c, 00X. DUST TRAP OB'GOLLEQTOB. APPLIOATIOH FILED 1111225. 1907;

Patented Feb.7,1911.'

UNITED STATES PATENT OFFICE.

SANDFORD G. COX, OF CHICAGO, ILLINOIS, ASSIGNOR TO COX MULTI-MAILER COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

DUST TRAP OR COLLECTOR.

To all whom it may concern: i

Be it known that I, SANDFORD C. (lox, a citizen of the United States, residing, at Cliicagofcounty of Cook, and State of Illinois, have invented certain new. and useful Improvements in DustTraps r Collectors, of, which the following is a fu 1, clear, and exact specification.

This invention relates to dust traps or collectors more especially designed for use in pneumatic apparatus for preventing dust and small particles of matter from entering theintake of an apparatus and eventually passing into the pump or exhauster; and it has for its primary object to prbvide an improved, simple and efficient form of deother objects which will hereinafter appear,

the invention consists in the. features of novelty which will now be described with reference to the accompanying drawings, and

then more particularly pointed out in'the claims.

Figure 1 is a longitudinal sectional view of the device; Fig. 2 is a cross-section thereof on the line 2*2, Fig. 1.

The .numeral 1 designates a shell orieasei ing, which is provided at one side with an outlet port 2, adapted for the connection of pipe or passage leading to the punip or exhauster, not necessary to illustrate. In one end of this shell or casing is formed an inlet port 3, adapted for the connection of a pipe or passage leading from the up paratus which the pump or exhaustcr is designed to operate, such for example as one or more sockets in a paper feeding machine intended for lifting the sheets of paper, or any other device where the accumulation of lint, dust, or small particles of matter is liable to occur. The end of the shell 1 opposite the intake 3 is preferably screw threaded and into it is inserted a screw threaded head 4, which is provided with a plural-- 'ity of longitudinal arms 5 arranged in a circular series and extending longitudinally of the shield l a distance substantially equal to-the interior length of the shell. These arms, however, are situated a considerable distance from the wall of the shell .and they are spaced with respect to each other. It

Specification of Letters Patent.

Application filed June 25, 1907. Serial No. 380,725.

ner end of the shell are formed with a ring 6. Into the space encircled by this circular series of arms 5 1s lnserted a cylinder 7,

Patented Feb. '7, 1911. j

composed of wire gauze netting or other like screen, the same being a piece of material of this character coded and inserted through the ring6 with its edges overlapped. The cylindrical screen 7 thus constituted is coterminons in length with the combinedlengthof the arms 5 and ring 6, and is also sutlicientlylong to project into the head 4, the opposite end wall. of the shell 1 being preferably formed with a boss 8 around the intake 3, which extends into the ringfi toinsure the entry of the dust or particlesinto the cylinder 7 instead of passing around the end of the cylinder.

IVith the device thus constructed, it will beseen that the air which enters the intake 3" will carry the dust and small particles of material into the cylinder 7 on its way to the outlet 2, and such dust, &c., will be trapped by the screen, and after sufficient is accumulated to warrant the trouble, the head 4 may be unscrewed and removed with the. cylindrical screen containing the accumulated matter, which may be readily dumped out and the screen cleaned, or another piece of gauze inserted.

- In order that the mvention might be undcrstood by those skilled in the art, the de tails of an embodiment thereof have been thus specifically described, but

"hat I claim as new and desire to secure by Letters Patent is:

- screen througlione end, the other end of the screen being "closed to the outlet by the: head. A 2. In a device for the purpose described the combination, of a shell having an inlet and an outlet, said inlet being surrounded by an inwardly extending boss, a removable head secured in the end of the shell opposite said boss and having a plurality of arms spaced ardund said boss and a hollow screen emhracedhy said arms and head, one end of the screen surrounding said boss and the other end being closed to the outlet by the head.

' 3v .Iln a device for the purpose described, the cembination of a shell having an inlet and en outlet, said inlet being surrounded with a hose extending into the shell, :1 remcvable head secured to the end of the shell opposite the boss, and a hollow screen, one

' end of which is removabl supported by the head and the otheren surrounding the hose and extending beyond the extremity thereef, said head being irovided with spuccd arms surrounding and extending 15 lengitudinally of the screen and terminating substantially flush with the end of the Screen. I I v In testimony whereof I have signed my name-to this specification, in the presence 0 two subscribing Witnesses, on this 16th day 'of May, A. D. 1907.

, SANDFGRD C QCOX.

Witnesses:

JOHN HUNEKE,

J. TOMLINBQN. 

